Question

How do you find the domain of {(2, 0), (4, –2), (8, –2), (1, 6), (–5, 0)}?

Answer 1

Domain = {2 , 4 , 8 , 1 , -5}

Explanation:

Domain of any relation is the set of the elements of all the ordered pairs which are of the set from which the relation is laid out.

In simpler words , you just need to write the first members of all the ordered pairs.

As in this case :-

in the ordered pair (2, 0)
2 is the domain as it is the starting of the ordered pair.

Similarly 4 , 8 , 1 , -5 are the domains of other ordered pairs.

Now you just need to write them in the curly brackets separated by comma.

Here's your answer!